Serial tweeter Brandi Glanville is admitting she's also a cheater  – well “technically” speaking!

The 40-year-old reality beauty makes the admission that she (sort of) cheated on her now ex-husband Eddie Cibrian to Anderson Cooper during her appearance on Friday’s Anderson Live, and Breaking Celebrity News has all the details on her confession.

When asked to comment on accusations that she cheated on her ex first – before his affair with country singer LeAnn Rimes – Brandi initially insists: “No, it’s not true.”

Then, the outspoken Real Housewives of Beverly Hills star gives a more sarcastic response, saying: “Well, I’ve slept with everyone in Beverly Hills as we already know.”

Jokingly, she asks Anderson, who came out last year as gay: “You don’t remember our affair?”

She then brands the cheating allegation as ludicrous -- given the alleged affair supposedly took place just weeks after she gave birth to one of the two sons she has with Eddie.